sketchmonster 

One who is sketchy in monstrous proportions.

One who is very, very suspicious or acts in suspicious ways.

(Random guy hides behind a wall.)
Person 1: Dude, look at that sketchmonster behind that wall.
Person 2: Yeah, seriously. Look at him. Standing behind that wall.

sketchmonster by Pdoany. February 25, 2009

Sketchmeister 

A sketchy person, someone you don't trust.

Person 1: hey, look at that sketchmeister following.

Person 2: dude, that's my dad.

Person 1: sorry, bro.

Person 2: No, your right he is a skechmeister.

Sketchmeister by iluvlaughing March 17, 2010

sketch monster

some one who does or says sketchy things. overly sketchy, suspicious.

ruby: OMG guess what matt told me last night?
catherine: what?
ruby: he said we should go to the woods at night
catherine: what a sketch monster!

sketch monster by candycanelegs September 3, 2012

sketch monster

Someone who is doing something wrong and is being obvious or looking guilty.

Somone is dealing crack in front of a cop. "look at that sketch monster!"

sketch monster by carla and tracy November 13, 2007

sketchmaster 3000 

Someone who is intelligent and really sketchy.

Yo this guy got a 90% on his test, but hes such a sketchmaster 3000

sketchmaster 3000 by Da-King October 30, 2009

Sketchmaster

a Totally weird scary crazy person. The most sketchy person you can think of.

Rasputin was a total sketchmaster. He was so weird and grime.

Sketchmaster by Nneesharse February 7, 2009

Sketchmaster

1. someone well established in the practice of being "sketch".

2. a person displaying such a great proficiency in sketchiness that others perceive them to be an indubitable master of sketchiness.

Did you see that sketchmaster sitting in the convenience store parking lot? He was in a white Honda Civic with blacked out windows smoking a marijuana filled cigar listening to Three 6 Mafia.

Sketchmaster by Furniture Mover April 19, 2010